| 摘要 |
A device for wrapping packets of cigarettes has a conveyor for feeding the packets successively along a path; and a number of heating heads, each of which is brought into contact with a respective packet and accompanies the packet from a contact station to a withdrawal station along part of the path; on reaching the withdrawal station, the heating heads are withdrawn, crosswise to the path, from the respective packets, and are conveyed, parallel to the path, from the withdrawal station to the contact station.
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